Pax6 as a Therapeutic Target: Convergent Molecular Pathways in the Regulation of Aniridia, Neurogenesis, Neurodegeneration and Oncology

TL;DR

Pax6 is a key protein that controls cell growth and survival, acting as both a tumor suppressor and oncogene depending on the context, and could be a target for treating diseases like aniridia and cancer.

Contribution

The paper highlights Pax6's dual role in health and disease and proposes it as a potential therapeutic target with context-specific strategies.

Findings

Pax6 regulates cell proliferation, differentiation, and survival in health and disease.

Pax6 can function as a tumor inhibitor or oncogene depending on the context.

Targeting Pax6 isoforms may lead to new therapies for aniridia, cancer, and neurodegeneration.

Abstract

What are the main findings?
Pax6 functions as a pivotal transcription factor that controls the balance between cell proliferation, differentiation, and survival, thereby influencing tissue homeostasis in both health and disease.Pax6 can behave as either a tumor inhibitor or an oncogene during tumor development, demonstrating a context-dependent dual function.

Pax6 functions as a pivotal transcription factor that controls the balance between cell proliferation, differentiation, and survival, thereby influencing tissue homeostasis in both health and disease.

Pax6 can behave as either a tumor inhibitor or an oncogene during tumor development, demonstrating a context-dependent dual function.

What are the implications of the main findings?
Pax6 may represent a viable target in selected pathophysiological settings.Future investigations should prioritize understanding the precise regulation of Pax6 isoforms, and developing isoform-specific inhibitors tailored to the predominant form driving a given disease, such as aniridia, specific cancers, or metabolic disorders.

Pax6 may represent a viable target in selected pathophysiological settings.

Future investigations should prioritize understanding the precise regulation of Pax6 isoforms, and developing isoform-specific inhibitors tailored to the predominant form driving a given disease, such as aniridia, specific cancers, or metabolic disorders.

Pax6 is a multifunctional transcription factor that orchestrates cell cycle progression at distinct stages of early embryonic neurogenesis and serves as a molecular mediator integrating multiple signaling pathways associated with pathological processes. Within this framework, Pax6 is regarded as an attractive molecular target for developing new drugs aimed at combating neurodegeneration, oncology, and aniridia. The present review aims to examine published studies describing various Pax6-dependent molecular pathways to identify common principles and condition-specific differences in Pax6-regulated cascades in health and disease. These insights may contribute to the conceptual foundation for developing new therapeutic strategies targeting Pax6 as a molecular regulator. This review summarizes the data demonstrating a central role of Pax6 in governing the neuronal cell cycle in health and pathology. It is possible that Pax6 may act as a therapeutic target in certain pathophysiological conditions; however, the effectiveness of such a strategy will depend on the substrate chain in the signaling pathway, its branching, and the redundancy of mediators involved.

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